baber/WOPTO huggingface dataset:
Patent GB-607879-A (GB)
Title: Electric follow-up systems
IPC: G05D3/12
Filed: 1945-09-21
Abstract: 607,879. Electric follow-up systems. YARDENY, M. N. Sept. 21, 1945, No. 24523. [Class 40 (i)] In a positional correspondence control system involving a reversible electric servomotor controlled according to the relative position of the members of a two-way and off type switch, one member of the switch is so coupled to the servomotor that one revolution of a shaft driven by the servomotor corresponds to a fraction of the maximum displacement of the switch members, the shaft operating a switch only during the major portion of one revolution upon reversal of the servomotor to slow down the servomotor. A movable load member 61 is driven through gearing 56, 57 by a reversible induction motor 1 to a position dependent on the setting, through transmission 20, 21 of a rotary ball-shaped contact 24 relative to rotary conducting segments 25, 26 separated by an insulating gap 30 and driven through gearing 56, 57, 79, 59 by motor 1. When the setting of contact 24 is such that it engages segment 25 or 26, relay 36 or 37 is respectively energized from a source 15 to complete the circuit to winding 2 or 3 of motor 1 which then drives load 61 and segments 25 and 26 in the appropriate direction until contact 24 lies within or bridges gap 30. The following anti-hunting features are described : (a) A fly-wheel 64 coupled to the shaft of motor 1 through an adjustable friction clutch 65 to retard the motor when it reverses on contact 24 overrunning gap 30. (b) Increased radius of segments 25 and 26 in the proximity of gap 30, Fig. 5 (not shown), to increase resistance to movement of contact 24 when the latter is in the neutral position. (c) Introduction, in the drive from gear 57, of a lost-motion coupling, Fig. 3 (not shown), which is normally locked by a friction coupling. The increased resistance referred to at (b) above is, however, sufficient to overcome the friction coupling so that a limited idle movement of gear 57 occurs when contact 24 reaches the neutral position. Gear 57 may be a pair of spring-coupled gears initially set to take up play in the drive from worm 56. (d) A onerevolution lost-motion device 11 which, when motor 1 reverses on contact 24 overrunning gap 30, removes a short-circuit from relay 6 which then vibrates to interrupt, periodically, the motor circuit and give slow speed final adjustment. Manual means, Figs. 1 and 3 (not shown), are provided for adjustment of load member 61 and segments 25 and 26 without rotating motor 1. In Fig. 4 (not shown) two separate pairs of rotary segments have their associated contacts adjusted to different positions and a single D.C. shunt motor drives the load member into correspondence with one or the other according to which of two switches .is closed. In this arrangement the lost-motion device corresponding to that at (d) above introduces a resistor into the armature circuit when it operates.
Patent GB-240863-A (GB)
Title: Improvements in or relating to metal mirrors within electroionic discharge tubes
IPC: H01J7/18
Filed: 1925-10-03
Abstract: 240,863. Edison Swan Electric Co., Ltd., (Assignees of Radio-R÷hren-Laboratorium Dr. G. Nickel Ges.). Oct. 3, 1924, [Convention date]. Vacuum tubes.-A radio tube filled with gas at low pressure contains a zinc, magnesium, or other metal mirror which has been surcharged with the gas, say at a pressure of 1-10 mm. of mercury. Slight increase of temperature during the use of the tube causes evolution of gas so as to maintain the requisite pressure. If the tube becomes " hard " it may be heated to 100‹ C.
Patent GB-487291-A (GB)
Title: Improvements in or relating to printing telegraph apparatus
IPC: H04L17/18
Filed: 1937-09-10
Abstract: 487,291. Type-printing telegraphy. CREED & CO., Ltd. Sept. 10, 1937, No. 24720. Convention date, Nov. 13, 1936. [Class 40 (iii)] In a receiving selector mechanism operated by a start-stop cam assembly, the commencement of rotation of the latter takes place after the receipt of the start signal, the time interval therebetween being adjustable. The stop position of the cam assembly is invariable. The Specification describes a sword and T-type of selector as described in Specification 415,768. Receipt of the start signal allows armature lever 22 to depress plunger 101 to remove latch 98 from the stop gate 96 which rotates to allow a disc 64 to be driven by the main shaft 51. The projection 104 on disc 64 rotates a stop latch 84 to release an arm 91 on the cam assembly whereupon the latter rotates with the disc 64. The position of the stop gate 96 relative to the latch 84 is adjustable by rotation of the lever 93 attached to a plate on which the stop gate 96 is pivoted. On the completion of its revolution disc 64 is arrested by the stop gate 96 which is latched during the stop signal while the cam assembly is arrested by the stop latch 84.
Patent GB-467653-A (GB)
Title: Stereophotographic apparatus for the purpose of obtaining the stereoscopic effects by means of one plate or one photographic or cinematographic film
IPC: G03B35/00
Filed: 1935-09-05
Abstract: 467,653. Stereoscopic kinematography &c. BARROS, E. DE, and RODENBURG, E. DE. Sept. 5, 1935, No. 24755. Void. Convention date, Sept. 5, 1934. [Class 97 (i)] Apparatus for producing images on films 6 comprises lenses 2, 21, prisms 3, 3<1>, 4 and filters 5, the prisms 31 being rotatable.
Patent GB-1414590-A (GB)
Title: Valve assemblies
IPC: B60C29/00
Filed: 1974-06-04
Abstract: 1414590 Valves VIKING-ASKIM A/S 4 June 1974 [5 June 1973] 24755/74 Heading F2V The stem of an inflation valve for a bicycle tyre has an elastic bead 11 which enables the valve to be snap-fitted in a rim 10. The diameter T of the nut 14, which retains the valve insert 15, is less than the diameter D of the hole in the rim 10 so that the valve may be inserted in the rim pre-assembled. Instead of the bead, ribs or knobs may be used.
Patent GB-248782-A (GB)
Abstract: 248,782. I. G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister, Lucius, & Br³ning). March 9, 1925, [Convention date]. Phenol-aldehyde, -ketone, and -ether condensation products are made by condensing a halogenated simple or mixed aliphatic ketone or ether, or a halogenated aliphatic aldehyde, with a phenol, in the presence or absence of a condensing agent, and bringing the products so obtained into a water-soluble. form by one of the usual methods, e.g. by sulphonation. The products possess froth-forming and d emulsifying properties. Instead of the halogen derivatives alone, mixtures of these with the corresponding aldehydes, ketones or ethers, such as are obtained during the preparation of the halogen derivatives, may be used. In the examples, phenol is condensed with chloracetone and chloracetalde. hyde in the presence of hydrochloric acid, and with asymmetrical dichlorether in the absence of a condensing agent, the resulting products being in each case sulphonated by heating with concentrated sulphuric acid. The phenol may be replaced by tricresol or crude coal-tar phenol. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of derivatives of halogenated ketones, ethers and aldehydes, and of aromatic oxy-compounds in general. It also includes additional examples in which phenol is condensed (1) with chlorethylmethylketone in the presence of hydrochloric acid and the product sulphonated by heating with concentrated sulphuric acid and (2) with chloracetone in the presence of hydrochloric acid, the product being solubilized by heating it with sodium sulphite and formaldehyde. This subject-matter does not appear in the Specification as accepted.
Patent GB-302714-A (GB)
Title: Improvements relating to furnaces
IPC: C21D9/00
Filed: 1927-09-21
Abstract: 302,714. Gunka, R. Sept. 21, 1927. Crucible and metal-heating furnaces.-A gas fired annealing or melting furnace comprises a bottom plate a supported on a tripod P<2> and carrying a central burner C, the body to be heated, such as a crucible t, being supported above the burner by a hollow refractory block h* and the waste gases passing through an annular opening 7<a> beneath the cover i* to a surrounding space 4<a>, containing air and gas preheating chambers D, and thence to an outlet flue Q. Air and gas under pressure are supplied to the preheating chambers by pipes D<3>, D<4> and leave through pipes D<1>, D<2> which rise nearly to the tops' of the chambers and are connected to the burner by pipes w having regulating valves S. The heated gas enters the burner by a pipe h<1>, Fig. 5, passes up between walls c<1>, d<1> to passages 4<1>, 4<2> and meets the heated air which enters by a pipe g, passes up between walls j, k and down between the walls j, d<1> to a bottom space 0<3> communicating by a tube g<1> with a central space 3<1>. The mixed gases issue through an annular nozzle m formed by a refractory sleeve f<1> and an inner hollow member n. The regulating valves S have their operating levers R connected together by a pivoted link and one lever carries a pointer passing over a circular scale graduated in temperatures. The connecting link may be pivoted to one lever and to a sleeve slidable on the other. To vary the relative quantities of gas and air supplied, one valve-operating lever mav be adjustable in a slot or groove on the pivoted link. A modification of the burner is described having one wall space only and the tube g<1> adjustable vertically. An observation hole and stirring aperture 5<a> is provided in the cover. The separate preheating chambers D may be replaced by one annular chamber divided centrally.
Patent GB-705218-A (GB)
Title: An ignition device for a boiling ring or burner of a domestic gas cooker
IPC: F23Q9/00
Filed: 1951-10-25
Abstract: 705,218. Igniting gas burners. BAINBRIDGE, G. A. Sept. 2, 1952 [Oct. 25, 1951], No. 34910/51. Class 75 (3) A means for igniting the gas at a particular boiling ring or burner of a gas cooker comprises an igniting burner M supplied with gas by a combination of rigid metal pipes F, 1, a control cock E and an adjustable regulating valve J all connected as by an elbow A to an extension of the gas manifold supplying the boiling rings or burners of the cooker. The igniting burner M is disposed near the particular ring or burner for maintaining a constantly burning flame for igniting the gas at said ring or burner when the tap controlling the latter is opened. The elbow A is connected to the control cock E by a tee-piece C which also connects with a further cock D for contrclling the burner or burners of apparatus such as a washing boiler, a gas poker, or a gas fire communicating with the cock D through a flexible pipe (not shown). The elbow A may be connected to the extension of the gas manifold through an adaptor.
Patent GB-422582-A (GB)
Title: Improvements in vulcanizers
IPC: B29D30/06
Filed: 1933-09-11
Abstract: 422,582. Vulcanizing-presses. BRIDGE & CO., Ltd., D., Castleton Iron Works, Castleton, Lancashire.-(National Rubber Machinery Co. ; Akron, Ohio, U.S.A.) Sept. 11, 1933, No. 25052. [Class 70] A watch-case vulcanizer has exterior locking means power operated in timed relation to the opening and closing of the vulcanizer, means for stripping the tyre from the mould, and means for completing the closing of the mould by moving one of the mould members. An upper platen 25, Fig. 2, is hinged at 23 to a lower platen 21. On an extension of the hinge arm 24 is trunnioned a cylinder 59. In the open position shown, the cylinder is locked by a latch 66 engaging a projection 68 on the piston rod 58. The depressing of a pedal 72 pushes back a rod 71, the forked end of which engages a spring-held pin 70 on the latch 66, and releases the cylinder 59 which is now free to move out on its piston, and close the vulcanizer when pressure is admitted to its after end. The piston rod 58 is then urged outwardly and turns a shaft 41 which carries plates 44 with lugs 45 and adjustable contacts 46 which extend into the path of locking arms 30 eccentrically mounted on the ends of the shaft 41. The upper ends of the arms 30 have T-shaped heads 34 which engage slots 31 in outstanding lugs 32 on the upper platen. The adjustment is such that the head engages its slot before the downward pull due to the eccentric mounting of the arm is effective. The tyre 75 is mounted on a bead-clamping ring 77, 78, Fig. 3, and is attached by a bayonet slot 80 to the head of a lifting pin 81. The lower end of the pin 81 has a cross-head 87 which bears on the end of a bell-crank lever 88, Fig. 2. The other arm 91 of this lever has a swivel through which passes a push rod 93 pivoted on the head of the cylinder 59. A collar 94 on the rod 93 is so adjusted as to bear on the lever 91 and raise the pin 81 as the opening of the vulcanizer nears completion. After locking, the mould halves are forced together by pressure fluid admitted to an annular bag 97, Fig. 3, in a recess 96 in the lower platen 21. A metal plate 99 is placed on the bag 97, and on this is placed an insulator plate 100 on the underside of which are formed ribs 101 to make a sinuous path for cooling gas passed through the insulator. A ring 110 limits the expansion of the bag 97. Upward movement of the lower mould is limited by upstanding rods 119, Fig. 2, on lugs 118 on the lower platen 21 with pins 123 overlying lugs 120 on the mould. Screws 121 in the lugs 120 allow of limited angular adjustment of the mould on the platen.
Patent GB-834435-A (GB)
Title: Method of and apparatus for the automatic insertion of sticks into ice cream bodies
IPC: A23G9/26
Filed: 1956-08-16
Abstract: 834,435. Inserting sticks into moulded icecream blocks. HILGERS, H., [trading as BENZ & HILGERS.]. Aug. 16, 1956 [Aug. 27, 1955], No. 25053/56. Class 87(2). [Also in Group VI] Sticks are inserted in slot-like openings in the ends of wrapped ice-cream blocks while they are in a soft condition. A portion of ice-cream is fed into and wrapped in a mould 2 on the turntable 1 and then transferred to a mould 10 on an intermittently moving, endless mould chain 11 which has only two side walls. A reciprocating needle-like member 15 on a shaft 17 pierces the wrapper and produce a slot-like opening in one end of the ice-cream block ; the reciprocation being initiated by a lever 25 loosely attached to a member 24, which carries one end of a spring 23 and is mounted on an axle 19. One end of a member 20 is secured to said axle and the other slides on guides 18 on one end of the shaft 17 ; being there abutted by a member 22, the lower end of which carries the other end of the spring 23. A stick 39 is pushed from the bottom of a hopper 40 into the opening in said block by the head 42a of the longitudinally reciprocating slide 42, the reciprocating movement of the slide being effected similarly to that of the shaft 17. The ice-cream block is confined during the above operations by a plate 26 and by an L-sh a ped plate 28 which has an opening to accommodate the needle 15 which is slightly narrower than the stick 39. The needle and the slide are spaced at least twice the distance between adjacent moulds on the chain 11 and the insertion of the needle and the stick into two blocks are performed simultaneously. Vertical adjustment of both insertion devices results from suitable movement of the frame 14, to which they are attached, by means of a rotatable cam disc 59, Fig. 4, (not shown) which is mounted in the frame 14 and adjustably connected to the frame 13.
Patent GB-325859-A (GB)
Title: Improvements in road & rail transport
IPC: B60F1/02
Filed: 1928-09-01
Abstract: 325,859. Moncrieff, A. H. D., and Shearman, J. Sept. 1, 1928. Alternative rail or road vehicle.- Road wheels are mounted on hubs or axles secured to or formed as part of the rail wheels which are provided with driving and steering mechanism, the road wheels being adapted to be moved into an eccentric position relatively to the rail wheels and to be held clear of the ground. Protruding from the rail wheel 2, Fig. 2, is an integral extension 5, on which, is mounted the road wheel 14, which, when in use, is keyed to the rail wheel concentrically by means of projecting keys 10 fitting in recesses 13. A slot is provided in the road wheel, and a loose piece 7 holds it concentric with the rail wheel. When the vehicle is running on rails, as shown in Fig. 4, the road wheel is moved outwards clear of the Keys, and the loose piece, 7 removed and replaced in the reverse way after lifting the road wheel, which is then prevented from rotating.
Patent GB-721789-A (GB)
Title: Improvements in or relating to electro magnetically-operated load release units
Inventor: DIAPER CECIL THOMAS
IPC: B64D1/02
Filed: 1952-10-08
Abstract: 721.789. Hooks. BRISTOL AEROPLANE CO., Ltd. Sept. 18. 1953 [Oct. 8. 1952], No. 25256/52. Class 8 (2). An electro-magnetically-operated load release unit comprises a load-carrying bar 13 projecting through a sealing device 14 in the wall of a casing 11 and being slidable into the casing to a cocked position and out of the casing to a load release position. A member 20 is pivoted to the casing at 17 and consists of spaced plates 21 having recesses 23 engaging a head 15 on bar 13 in its cocked position, the member being prevented from pivoting by a plunger 31 engaging rollers 24, 26 pivoted to the member and casing respectively. The plunger is withdrawn by energising a solenoid 92 whereupon the load slides bar 13 out of the casing causing member 20 to turn clockwise. A slidable balance weight 43 is connected to the plunger by a lever 41 pivoted at 42 and serves to render the unit insensitive to externally applied linear accelerations. A spring 45 biases the plunger to the position shown. The unit is cocked by pushing bar 13 into the casing to turn member 20 anticlockwise until the plunger 31 can move to its position between the rollers. A press-button 50 is provided for manually checking whether the unit has been cocked or not and a further button 54 for manually withdrawing the plunger should the solenoid fail. A cam 77 on member 20 opens contacts 73, 74 in circuit with the solenoid when the bar 13 moves to the release position, and in so moving, the bar may pivot a cam 83, closing switch contacts 81, 82 controlling the sequential operation of a further release unit. An electrical connecting block 65 is fixed to the casing, connections being made by plugs extending through holes 69 to engage sockets 66; sockets not in use being covered by removable diaphragms 70.
Patent GB-148710-A (GB)
Title: Improvements in hand saws
IPC: B23D49/14
Filed: 1919-10-16
Abstract: 148,710. Cooke, F. G. Oct. 16, 1919. Saws. - The handle of a hand-saw is cast on to the blade. To increase the security of the fixing, the blade may have holes, projections, or the like in which or around which the cast metal flows. In the tenon-saw shown in Fig. 1, the handle H is cast on to the blade C which has holes D, E, F. D<1>, through which the cast metal flows forming rivet-like connexions with the sides H<1> of the handle H. The rib J may be cast integrally with the handle on to the blade, or cast separately on to the blade, and the blade may have a corrugation or the like G, Fig. 3, so as to key it to the rib J without interfering with the longitudinal contraction of the rib in cooling. Special dies may be used having flat surfaces to clamp the blade so as to prevent it from buckling during the casting and terminating level with or short of the forward end of the blade J, to allow for the longitudinal contraction of the rib.
Patent GB-1472136-A (GB)
Title: Master cylinder assembly for a vehicle hydraulic braking system
IPC: B60T11/21
Filed: 1974-06-08
Abstract: 1472136 Master cylinders GIRLING Ltd 15 May 1975 [8 June 1974] 25543/74 Heading F2F In a master cylinder assembly of the kind in which separate master cylinders 1, 2 are connected by a transfer passage 35 through which pressure spaces 33 in the cylinders are in communication when the master cylinders are operated simultaneously and communication is cut off by a valve assembly 37, 38 when a master cylinder is operated on its own the valve assembly is located in the transfer passage and comprises an unsprung valve member 39 urged into engagement with one of a pair of seatings 38, 38 to cut off communication when one cylinder is operated and held in a neutral position spaced from both seatings when the master cylinders are operated simultaneously. The valve member 39 consists of a ball urged toward the seatings by thrust members in the form of smaller balls 40 which are engaged by inclined annular faces 41 on the pistons 12 of the master cylinders. In a modification the valve and thrust members are combined into a single member in the form of a double-ended cone.
Patent GB-1088684-A (GB)
Title: A new or improved commodity dispenser for shops and the like
IPC: A47F1/10
Filed: 1965-06-17
Abstract: 1,088,684. Dispensing articles. A. C. LIBBERTON. June 3, 1966 [June 17, 1965], No. 25586/65. Heading A4T. A dispenser of articles 21 comprises an elongated base 10 disposed transversely of the front of a shelf 25 with side plates 20 connected to dowels 18 clamped in bracket 17 whereby the width is adjustable and a pusher 16 secured to two plungers 12 spring loaded at 13 and captive in circular grooves 11 in the base, whereby the front packet is pushed towards stops 22 and may be extracted upwardly or downwardly over the sprung support hinge 23 between forwardly extended sides. The pusher may be fully retracted to engage projection 32 for refilling and may be hinged. The base may slope up or down.
Patent GB-139736-A (GB)
Title: Improvements in spring catches for use with doors and other purposes
IPC: E05C19/04
Filed: 1919-10-21
Abstract: 139,736. Lilly, J. Oct. 21, 1919. Catches, ball-ended.-In a yielding catch, the tubular part 1 enclosing the spring 8 and roundended latch member 7 is formed with a flange or flare 2, Fig. 5, which is held between the parts 3 of a double face-plate, which may be suitably recessed to receive it. The double face-plate may be formed by folding over a single piece of sheet metal.